Rose Plant Named &#39;Poulcas041&#39;

ABSTRACT

A new garden rose plant which has abundant, yellow flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

BOTANICAL DESIGNATION

Rosa hybrid

VARIETY DENOMINATION

‘Poulcas041’

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of garden rose plant which originated from a controlled crossing between the female seed parent, an unnamed seedling, and the male pollen parent, also an unnamed seedling.

The two parents were crossed during the summer of 2003 and the resulting seeds were planted in a controlled environment in Fredensborg, Denmark. The new variety, named ‘Poulcas041’, originated as a single seedling from the stated cross.

The new variety may be distinguished from its male pollen parent and female seed parent by the following characteristics. The female seed parent is 60 to 70 cm in height while the new plant is about 40 cm in height. The male pollen parent has flowers which are a red and yellow blend, while the new plant has yellow flowers.

The objective of the hybridization of this rose variety was to create a new and distinct variety for garden use with unique qualities, such as:

1. Uniform and abundant yellow flowers;

2. Vigorous, but compact growth when propagated both as a budded rose and on its own roots;

3. Exceptional disease resistance.

This combination of qualities is not present in previously available commercial cultivars of this type, known to the inventor, and distinguish ‘Poulcas041’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated the seeds from the aforementioned hybridization during winter of 2003 and conducted evaluations on the resulting seedlings in a controlled environment in Fredensborg, Denmark. ‘Poulcas041’ was selected in the spring of 2004 by the inventor as a single plant from the progeny of the aforementioned hybridization.

Asexual reproduction of ‘Poulcas041’ by traditional budding and rooted cuttings was first done by Mogens N. Olesen in the nursery in Fredensborg, Denmark in July, 2004. This initial and other subsequent asexual propagations conducted in controlled environments have demonstrated that the characteristics of ‘Poulcas041’ are true to type and are transmitted from one generation to the next.

DESCRIPTION OF THE DRAWING

The accompanying color illustrations show as true as is reasonably possible to obtain in color photographs of this type, the typical characteristics of the buds, flowers, leaves, and stems, of ‘Poulcas041’. Specifically illustrated in FIG. 1 are open flowers, petals detached, flower buds, and reproductive flower parts. FIG. 2 shows a flowering branch, flower buds, leaves, and stems. Plants shown are 2 years of age.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulcas041’, as observed in its growth in in a field nursery in Marion County, Oreg. Observed plants are 2 years of age, and were grown on their own roots. Observed plants are 3 years of age, and were grown on Rosa multiflora understock. Color references are made using The Royal Horticultural Society (London, England) Colour Chart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety ‘Poulreb’, U.S. Plant Pat. No. 12,534 dated Apr. 9, 2002, are compared to ‘Poulcas041’ in Chart 1.

CHART 1 ‘Poulcas041’ ‘Poulreb’ Petal Count 35 petals 60-75 petals Flower Diameter 80 mm 70-80 mm General Tonality Yellow-Orange Group 16A Yellow Group 8B of Flower Color

-   Flower and flower bud:     -   -   Blooming habit.—Continuous.         -   Flower bud.—Size: Upon opening, 30 mm in length from base of             receptacle to end of bud. Bud diameter is 18 mm. Bud form:             Ovoid. Bud color: As sepals divide petals are Yellow-Orange             Group 22A and Yellow Group 12C. Sepal inner surface: Color:             Green Group 143D. Surface: Lightly pubescent. Sepal outer             surface: Color: Yellow-Green Group 144A. Texture: Smooth.             Sepal Shape: Apex: Cirrhose. Base: Flat at union with             receptacle. Sepal Margin: Margins have moderate foliaceous             appendages on three of the five sepals. Sepal size: 35 mm             long, 10 mm wide. Receptacle: Texture: Smooth. Size: 10 mm             in height, 8 mm wide. Color: Yellow-Green Group 144A. Shape:             Campanulate. Pedicel: Surface: Smooth. Length: 25 mm.             Diameter: 3 mm on average. Color: Yellow-Green Group 144A.             Strength: Strong. Peduncle: Length: 4 to 10 cm. Diameter:             4 mm. Color: Yellow-Green Group 144A. Occasionally,             anthocyanin the color of Greyed-Purple Group 184A. Texture:             Smooth.         -   Flower bud development.—Flower buds are borne in clusters of             5 to 7 flower buds per stem.         -   Flower bloom.—Fragrance: Weak floral scent. Duration: The             blooms have a duration on the plant of approximately 10             days. Petals fall cleanly away from plant after flowers have             fully matured. Size: Flower diameter is 80 mm when open.             Flower depth is 30 mm. Flower shape: Rosette double flower             with many slightly overlapping petals of different sizes.             Shape of flower, side view: The upper portion is rounded.             The lower portion is concave.         -   Petalage.—Under normal conditions, flowers have 35 petals             total, 5 of which are petaloids.         -   General tonality of flower.—Open flowers are Yellow-Orange             Group 16A.         -   Petal color.—Upon opening, outer petals Upper surface:             Yellow Group 13B. Lower surface: Yellow-Orange Group 22C at             the middle and marginal zone. At the base of the petal             Yellow Group 12A. Upon opening, inner petals: Upper surface:             Yellow Group 13B. Lower surface: Orange Group 24B at the             marginal zone, blending with Yellow Group 12A at the middle             zone. The base of the petal is Yellow Group 12A. After             opening, outer petals Upper surface: Yellow Group 13B. Lower             surface: Yellow-Orange Group 22C at the middle and marginal             zone. At the base of the petal Yellow Group 12A. After             opening, inner petals: Upper surface: Yellow Group 13B.             Lower surface: Yellow-Orange Group 22C at the middle and             marginal zone. At the base of the petal Yellow Group 12A.         -   Petals.—Petal Reflex: Strong. Margin: Entire and uniform.             Weak undulations. Slight point at the apex. Shape: Generally             rounded. Apex shape: Rounded. Base shape: Rounded. Size: 35             mm (1)×35 mm (w). Texture: Smooth. Thickness: Average.         -   Petaloids.—Size: 20 mm (1) by 20 mm (w). Quantity: 5 on             average. Shape: Elliptical. Apex and base are acute.             Margins: Strong undulations. Color: Upper surface is Yellow             Group 12A. Undersurface is Yellow-Orange Group 22B.         -   Reproductive organs.—Pollen: None observed. Anthers: Size: 2             mm in length. Color: Yellow Group 12B. Quantity: 55 on             average. Filaments: Color: Yellow-Orange Group 15A. Length:             6 mm. Pistils: Length: 5 mm. Quantity: 30 on average.             Stigmas: Color: Greyed-Yellow Group 160A. Styles: Color:             Green-White Group 157A with intonations of Red Group 51A.             Location of stigmas: Level in location relative to the             length of the filaments and the height of the anthers. Hips:             None Observed. -   Plant:     -   -   Plant growth.—Upright, compact, bushy. Plants are 40 to 45             cm in height, and 40 cm wide.         -   Stems.—Color: Juvenile growth: Yellow-Green Group 145A.             Mature growth: Yellow-Green Group 146C. Length: On average,             canes are 20 cm from the base of the plant to the flowering             portion. Diameter: 5 mm. Internodes: On mature canes, 30 to             50 mm between nodes. Surface Texture: Young wood: Smooth.             Older wood: Smooth.         -   Long prickles.—Incidence: 12 prickles per 10 cm of stem.             Size: Average length of prickles on mature stems is 11 mm.             Shape: Upper portion is linear. Lower portion is concave.             Color: Juvenile prickles: Greyed-Yellow Group 160B. Mature             prickles: Greyed-Purple Group 184B.         -   Plant foliage.—Compound leaf: 115 mm (1)×85 (w). Quantity: 3             leaves per 10 cm of stem on average. Leaf bearing angle to             the stem: 45 degrees. Color of juvenile foliage: Upper side:             Yellow-Green Group 144B with marginal intonations the color             of Greyed-Orange Group 173A. Lower side: Yellow-Green Group             144B with marginal intonations the color of Greyed-Orange             Group 173A. Color of mature foliage: Upper side:             Yellow-Green Group 147A. Lower side: Yellow-Green Group             147B.         -   Plant leaves and leaflets.—Stipules: Size: 16 mm long, 3 mm             wide. Quantity: 2 per compound leaf. Shape: Linear, slightly             broad based with outward extending apices. Margins: Finely             serrated. Color: Yellow-Green Group 146B. Petiole: Length:             16 mm. Diameter: 2 mm. Upper surface: Color: Yellow-Green             Group 146A. Lower surface: Color: Yellow-Green Group 144A.             Rachis: Length: 43 mm Upper surface: Color: Yellow-Green             Group 146A. Lower surface: Color: Yellow-Green Group 144A.             Observations: Small prickles Leaflet: Quantity: Normally 7             leaflets. Margins: Serrated. Size: On average terminal             leaflets are 50 mm long, 35 mm wide. Shape: Generally             elliptical. Base: Rounded. Apex: Cuspidate. Texture: Smooth.             Thickness: Average. Arrangement: Odd pinnate. Venation:             Reticulate. Glossiness: Moderately glossy. Disease             resistance: Above average resistance to powdery mildew             Sphaerotheca pannosa, downy mildew Peronospora sparsa, rust             Phragmidium sps., black spot Diplocarpon Rosae, and Botrytis             cinerea under normal growing conditions.         -   Cold hardiness.—The variety is tolerant to USDA Cold             Hardiness Zone 6.         -   Heat tolerance.—The variety has been found to be suitable             for climate conditions found in the American Horticulture             Society heat zone 7. 

We claim:
 1. A new and distinct variety of rose plant named ‘Poulcas041’, substantially as illustrated and described herein, due to its abundant yellow flowers, disease resistance, and extended period of bloom. 